Just come across this. Turn based\tactical combat with rogue-like elements and a touch of XCom and Space Hulk by the look of it.
I've given it the thumbs up over on Steam greenlight.
"What is Steam Marines?
Steam Marines is a squad based Roguelike set on a steampunk spaceship. It features tactical play focused on positioning and careful use of resources, Steam Marines is built to keep you on your toes as you progress through the decks of your besieged ship, clearing enemies and trying to escape.
2D Retro Art
Pixels with attitude. The world of Steam Marines is steampunk, and the environment reflects a world of brass and copper, of mechanical mechanisms and engineering excellence. And guns.
Build your marines up into long range or up close death machines, but don't expect any mercy. Death is permanent and if a marine falls he's gone forever.
Turn and Squad Based Gameplay
Command up to four marines, each with their own gear, stats, skills, and Action Points. Positioning is critical - even a lone enemy can be lethal! Use your Scout to sight and snipe or your Grenadier to funnel enemies into a choke point and blow them up!
The steampunk spaceship is composed of multiple decks you must progress through. Different environments and creatures await, and you'll never know for sure what lies beyond the next corner.
State of the Game
Steam Marines is currently in open alpha. This means more gear, mods, implants, monsters, talents, and tilesets will be added in the coming months. Much of the core gameplay is already implemented. Movement, firing, monster AI, fog-of-war, gear and inventory system, and a Follow Mode to help move the entire squad through areas quickly."